bigad shaban reports president obama revealed the details saturday night. >> reporter: president obama announced the historic agreement that would scale back iran's controversial nuclear program. >> these are substantial limitations which will help prevent iran from building a nuclear weapon. simply put, they cut off iran's most likely path to a bomb. >> reporter: the deal was made in switzerland. secretary of state john kerry and diplomats from several countries negotiated with iranian leaders through the night hammering out the final details. in geneva on sunday morning the foreign minister tweeted we have reached an agreement. in that deal iran will temporarily limit its nuclear program. in exchange notions will ease harsh, the nations will ease -- nations will ease harsh sanctions that have damaged iran's economy. >> it is important that all of us see the opportunity to end the crisis and open new horizons. >> we will refrain from imposing new sanctions and we will allow the iranian government access to a portion of the proceeds from sanctions. >> reporter: if this initial dole hol